Argon filling safety device for preventing high-temperature melt liquid from leaking in titanium sponge production and use method

Abstract

The invention discloses an argon filling safety device for preventing leakage of high-temperature melt liquid in titanium sponge production, which comprises a manual valve, a pressure sensor, an automatic valve, an automatic valve and a foot valve, the pressure sensor collects pressure and pressure difference in a reactor to control the valves, the foot valve controls the valves through pressure conversion, and the automatic valve is connected with the automatic valve. And the manual valve is a valve which is normally used by an operator. According to the invention, the automatic valve and the manual valve are connected in series, and pressure sensing and gravity sensing control are combined, so that intelligent management of the argon filling process is realized. The automatic valve is automatically opened and closed according to a preset pressure threshold value, the manual valve needs to be manually treaded to be operated, it is ensured that the valve is broken when people leave, and the device is simple in structure, high in safety and capable of effectively eradicating leakage accidents caused by human errors.

Description

Technical Field

[0001] The present invention relates to the technical field of metal smelting equipment, and particularly relates to an argon filling safety device system for preventing leakage of high-temperature molten liquid during the production of titanium sponge. Background Art

[0002] During the production of titanium sponge, leakage accidents of high-temperature molten liquid frequently occur in the still evaporation process, causing personal injuries and equipment losses. In the prior art, although management requires two people to be present and a special person to fill argon when discharging magnesium chloride or passing through fire during still evaporation, due to the decline in the emergency response ability of operators in a low-load working state, it is easy to cause accidents due to negligence, such as the valve not being closed or the argon filling pipe not being unplugged. Such problems not only affect production efficiency but also significantly reduce the reliability of the system. Therefore, there is an urgent need for a safety device that can fundamentally prevent accidents caused by human errors. Summary of the Invention

[0003] To solve the problem of the argon filling valve not being closed due to human operation errors in the prior art, the present invention provides a double-valve safety device combining automatic control and manual operation, which realizes intelligent management of the argon filling process through pressure monitoring and gravity sensing to ensure operation safety.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: An argon filling safety device for preventing leakage of high-temperature molten liquid in the production of titanium sponge includes a manual valve arranged in series on the argon pipeline; an automatic valve A and an automatic valve B are arranged in parallel at the front end of the argon pipeline. The automatic valve A is connected to a pressure sensor, and the automatic valve B is equipped with a gravity sensing switch foot valve.

[0005] The beneficial effects of the above technical solutions are: (1) Intrinsic safety design: By combining the automatic valve and the pressure sensor, leakage accidents of high-temperature molten liquid caused by human errors are fundamentally eliminated, significantly improving the safety of the production process.

[0006] (2) High reliability: Through redundant design, dynamic voltage regulation, and gated clock technology, it is ensured that the system can still operate with high reliability in the low-energy consumption mode.

[0007] (3) Optimization of human-computer interaction: The design of the foot switch ensures the strict implementation of the operation of "special person filling argon", further enhancing the on-site safety.

[0008] (4) Economy and practicability: The device has a simple design, low cost, is easy to promote and apply, and can effectively reduce the safety risks and economic losses during the production of titanium sponge. Brief Description of the Drawings

[0009] Figure 1This is a schematic diagram of the simple structure of the device.

[0010] In the figure: 1 - foot valve, 2 - pressure sensor 2, 3 - automatic valve A, 4 - automatic valve B, 5 - manual valve, 6 - argon pipeline.

[0011] Figure 2 This is the working logic flow chart of the argon filling safety device. Specific implementation manners

[0012] The present invention will be further described in detail below with reference to the accompanying drawings. As Figure 1 and Figure 2 shown, the argon filling safety device of the present invention includes a manual valve 5, a pressure sensor 2, an automatic valve A 3, an automatic valve B 4, and a foot valve 1. The automatic valve 4 and the automatic valve 3 are arranged in parallel at the front end of the argon pipeline 6. The pressure sensor 2 is used to monitor the pressure of the magnesium chloride pipe and the reactor in real time and transmit the signal to the automatic valve 4. The automatic valve 4 judges whether it is safe to fill argon according to the preset pressure threshold logic and controls the opening and closing of the automatic valve 4.

[0013] During the normal argon filling process, the operator clicks the switch of the automatic valve B 4, opens the manual valve 5, and judges whether the pressure of the magnesium chloride pipe is ≥90 - 100 kPa and the pressure in the reactor is ≤3 - 6 kPa within 3 seconds. If the conditions are met, the automatic valve B 4 remains open for argon filling operation; if the conditions are not met, the automatic valve 1 automatically closes. When discharging magnesium chloride or in case of a fire, the operator needs to step on the foot valve 1. After receiving the signal, the automatic valve A 3 opens and the argon filling operation starts. When the operator leaves, due to gravity induction, the foot valve automatically closes to ensure the strict implementation of the "special person for argon filling" operation.

[0014] For further description of the present invention, the present invention considers redundant design and fault tolerance mechanism to improve the reliability and fault tolerance ability of the system. The series automatic valve A 3 and the automatic valve B 4 are designed with the manual valve 5. The automatic valve B 4 and the automatic valve A 3 are arranged in parallel to ensure that the safety is still guaranteed when the automatic valve A 3 and the automatic valve B 4 fail.

Claims

1. An argon - filling safety device for preventing leakage of high - temperature molten liquid in titanium sponge production, which includes a manual valve (5) arranged in series on an argon pipeline (6); an automatic valve A (4) and an automatic valve B (3) are arranged in parallel at the front end of the argon pipeline (6). The automatic valve (4) is connected to a pressure sensor (2), and the automatic valve (3) is equipped with a gravity - sensing switch foot valve (1).

2. The argon-filled safety device for preventing leakage of high-temperature molten liquid in titanium sponge production according to claim 1, wherein: The automatic valve A (4) and the automatic valve B (3) are in series with the manual valve (5).

3. The method of using the argon-filled safety device for preventing leakage of high-temperature molten liquid in titanium sponge production according to claim 1, characterized in that: The operator clicks the switch of the automatic valve B (4), opens the manual valve (5), and judges within 3 seconds whether the pressure of the magnesium chloride pipe is ≥90 - 100 kPa and whether the pressure in the reactor is ≤3 - 6 kPa; If the conditions are met, the automatic valve B (4) remains open for argon - filling operation; if the conditions are not met, the automatic valve (1) automatically closes. When discharging magnesium chloride or during a fire - through operation, the operator needs to step on the foot valve (1). After the automatic valve A (3) receives the signal, it opens and the argon - filling operation starts. When the operator leaves, due to gravity sensing, the foot valve automatically closes to ensure the strict implementation of the "argon - filling by designated person" operation.

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